20362056 has 128 divisors (see below), whose sum is σ = 63504000. Its totient is φ = 5345280.

The previous prime is 20362049. The next prime is 20362057. The reversal of 20362056 is 65026302.

It is a super-2 number, since 2×20362056² = 829226649094272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20362057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58170 + ... + 58518.

It is an arithmetic number, because the mean of its divisors is an integer number (496125).

Almost surely, 2^20362056 is an apocalyptic number.

20362056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20362056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31752000).

20362056 is an abundant number, since it is smaller than the sum of its proper divisors (43141944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20362056 is a wasteful number, since it uses less digits than its factorization.

20362056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20362056 is about 4512.4334898146. The cubic root of 20362056 is about 273.0699280137.

Adding to 20362056 its reverse (65026302), we get a palindrome (85388358).

The spelling of 20362056 in words is "twenty million, three hundred sixty-two thousand, fifty-six".